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No airflow from specific vents or clicking noise behind dashboard

Q: What are the symptoms of No airflow from specific vents or clicking noise behind dashboard in Jeep Compass?

No cold air from vents. Problem appears while driving. Different temperature on both sides of the cabin. Weak or no heating in winter

Q: How to fix No airflow from specific vents or clicking noise behind dashboard in Jeep Compass?

COMPRESSOR: Before replacing, check whether it is a power supply problem (air conditioning fuse under the hood). WK2 flaps: HeaterTreater set + window cutting method (2 hours instead of 12 hours of dismantling the board). Cables: Rear AC Bypass Kit if rear section is corroded. WK2 Grand Cherokee 2011-2021: before replacing the compressor, ALWAYS check the 40A fuse of the air conditioning (same trap as in the Audi C7). It costs PLN 5. HeaterTreater saves PLN 1,500 in labor.

in Jeep Compass (2005-2025)

Symptoms

No cold air from vents
Problem appears while driving
Different temperature on both sides of the cabin
Weak or no heating in winter

DTC error codes

Low pressure / Blend door fault

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Technical diagnosis (Premium)

Recognized technical fault:

Auxiliary controller voltage instability detected

Technical analysis

Detailed analysis of HVAC controller operation parameters, CAN bus data readings, and diagnostic signal waveforms. Purchase PRO access or log in to read the full fault analysis.

Confirmed solution

Complete step-by-step repair procedure including module non-volatile memory reset, sensor calibration, and correct wiring routing. Unlock the full report to see the instruction.

Parts needed

Filters ferrite anti-interference / noise suppressor
Auxiliary starting battery (depending on cell status)

Workshop hacks

Important workshop tips for mechanics regarding bypasses without expensive control module replacement and manufacturer software service bulletins.

TSB / TPI service bulletins

TSB-24-HVAC-01TPI-2068943/2

A/C Technical Specifications

II - (MP)

Refrigerant: R1234yf Amount (g): 480-530g Oil: PAG YF ISO 46 Oil (ml): 120 - 150ml

See full specification

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No airflow from specific vents or clicking noise behind dashboard

Symptoms

DTC error codes

A/C Technical Specifications

Other problems in Compass

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